Diaphragm-horn.



D. A. MCUNNELL. DMPHRAGM HORN. APPLICATIUN FILED DEC. B. 1914.

Patnd July 10, 1917.

2 SHEETS-SHET-l.

Y MIM:

J INVENTOR rrolmgf 'Mmmm "0. A. MCCONNELI..

DIAPHRAGM HORN. APPLICATION FILED D c.a.19n.

Patnwd July 10, 1917.

IIIIiIII Ii Ig;

au Mannoia/vir UNTTED sTATEs PATENT OFFICE.

DUNCAN A. MUCONNELL, F ARLINGTON, NEW JERSEY, ASSIGNOR ',10 LOVELL- MUCONNELL MANUFACTURING CORPORATION 0F DELAWARE.

COMPANY, or NEWARK, NEW JERSEY, A

DIAIHRAGM-HOBN.

Specification of Letters lateiit.

Patented July 1o, 1917.

Application led December 8, 1914. V Serial No. 873,005.

at the desired high speed by multiplying gearing and a Oneway ,clutc 1l interposed between said rotor and a manually and4 intermittently operated driving member.

My invention relates Lto certain details of construction whereby I secure greater com pactness and render the device more easily o erated, more quickly assembled and more e cient in operation. The various impor tant features will be particularly pointed ouh-hereinafter in lconnection with a detailed description of a referred embodiment 'of my invention which I have selected for illustration in the accompanying drawin s, in which similar reference characters in icate corresponding parts in the several views.

Figure 1 is a side elevation of a device constructed in accordance with my invention, a portion oie the rasingand the diaphragm being` shown in scctin;

Fig. 2 is a side elevation similar to Fig. 1 but showing the operating mechanism .as viewed from the opposite side;

Fig. 3 is a top plan view of the operating mechanism. the casing. diaphragm, and rack bar being shown in ser-tion;

Fig. 4 is a section on the line l and y Fig. 5 is a side elevation showing a differA ent form of rack bai' stopping means.

In the specific form illustrated. there is Aemployed an elastic diaphragm 10. preferably made of thin spring steel. clamped at its periphery between two casing members ll and '12, suitable gaskets or washers 13 be-V 60 ing employed on opposite sides of the di aphragm. The casing member 11 has its` body portion spaced from the dia hragm and has a large central sound out et bordered by an outwardly directed flange 14 4-4 of Fig.

serving to support the resonator 15. The rear casing member 12 is Substantially in the form of a cup with a cylindrical pel ripheral wall 16 closed at one end by an end wall 17 and having an outwardly extcndingperipheral flange 18- at the open end, and serving as the diaphragm clamp ing portion. The two members 11 and 12 may be rigidly secured together in any suit able manner, as for instance, by screws 19 extending through the peripheral ortion ofthe diaphragm and the washers. he details of construction so far described forni no portion of the resent invention and maV be varied in any escribed manner. i

A wear-piece in the form of a threaded stud 20 extends through the diaphragm at the center thereof and has the end projecting toward the rear casing member rounded and symmetrical with .respect to its axis to constitute a universally presentable wear surface. The diaphragm at the center is preferably reinforced to better support the stud, said reinforcing` being preferably in the form of a tubular rivet comprising a sleeve 21 having a base iiange engaging with one surface of the diaphragm and a collar riveted down into firm engagement with the other. For holding the wear-'piece in proper adjusted position, ay suitable lock nut Q2 muy be employed. Within the rear easing I mount a rotor Q3 havin a series of peripheral projections, preferaly in 'the forni of spaced cams, for successive engagement with the Wear-piece to force the diaphragm into vibration as said rotor is turned at high speed. I prefer a cam of the saine size and shape as that shown'in Hutchison Patent- Nc. 1,169,721 issued J an uary 25, 1916, the drawing of which is substantially ay working drawing of the horn' as actually built and put upon the market, but as pointed out hereinafter, are possible. The rotor is preferably in ounted to turn about an axis disposed substantially horizontal and substantially parallel to the diaphragm.

The specific means for supporting the rotor and its driving mechanism preferably includes a bracket having a base portion 25 rigidly secured to one wall of the casing, for instance, the rear end wall 17, and projecting bearing portionslt. The rotor 23 is mounted upon a shaft 27 which latter also vari ations` vis l`lint also atV thv vairivfl a pinion 2S. thv rotor aint pinion livin;r rigidly vririnvvtvit with vavh other prvtvriitilj' h'i living tnaitv right with thv` svviirvrl .toglvthvr hy siiltahlv invans. slvviv Ill" i'otatiihli' 2t) whivh in thi4 into thvl iigiilli a l'oi' iiistsinvinhi' tliv inoiintvtl iipon thv shalt, tva v is :i stint shat't svivwvil tightly pinion ltt :ilift i'atvhvt whvvl Il. 'lhv lattvi' arv prvtvi'ahly lpavvrl apart. laaiil gvai'lt'. living loosvly inoliintvit on thv lStvvvv wliivh voiii'ivvts thvin. This ,f rvar whvcl 32 invshvs with thv pinion 2S. (ln thv siilv, tavv, 0l" thv gvar Vwhvvl ft2 iS a pawl 325 hvl t in vii-- ,aagvnivnt with'thv tvvth of thv ratvhvt 'whvvl li a vpiin';r ft also vari-ivil on thv siilv tavv of thv ,Lfviii whvvl.

. thirit Shaft V ioiirnalvit intvi'invihzitv of its ends. has on oriv vnil a `fvai whvvl 23V 'invshing with thv pinion JJL aint on thv .othvi' vnrl a pinion 3T nivshing with a \'vi'tirall,\' inovahlv rai-li haii' 3R. 'l`hi.\A i'avl hai' is slittahli.v moiintvfl within a V iiitiihlv ,ijiiirtv-n'ii)Y 39 ltoi-"invit integrally in thv inatvrial ot tliv liravh'vt :init vlosvit in not onl at thv siitvs hack so that thv hai' ia livlit in pi'opvr nivHh witlithv tival' 35T without thv nvvvssitiy of svpai'atv f iiiittv way invinlivi's'. Morvovvr. it svrvvs to i'vtziiii aint protvvt from rixiilation iilliviviit. oil or gi'vasv to tlioroiighly lnlirivatv thv har and to llivil wiitvr fallin;r on the vxposvit partsl ot' thv hai' in hail wvathvr. 'lhv iippvi' vint o." thv i'avk har proivvts through a fiiiilv -ttt projwting: aliovv th'v` nppvi siilv ol thv vzising :init tvriiiinatvs4 in a hvait oi' hanillv tl norinall \v #paf-vit at'. somv littlv (list-amic ahorn thv vasing. lli' t'rn'ving thv i'avk hai flownwaritly. thv gvai' Il? in vaiisvil to iotiitv anrt niotion iss ti'ansinit'tvrt t'i'on'i this Ivar to ttiv rotor 22% thi'ongh tliv shaft. B5. Ivar it'. pinion Ill.- pawl 3ft, ,Lrvar 32. pinion 2S :init Shaft 2l'. .\t th v vint ol' t'hv Hti'olv thv iavli hai' iii:i hv i'vtNinvil to its initiiil position willi :i voii'vs4poinling rvtnrn nio\'viiivnt olA .thv f fviir Il?. vivai' IML pinion il() anil i'iitvhvtl fwhvvl ill. 'l`hv hittvi' may pass hviiviith thv tvvth olI thv pawl :tint tlivi'v will y 3' lit-h thvfpaits iiiatlv in thv p`ropiiitioiml shown inthv flrawingnv :init with iioiinzil vonilitioiis olA ripvi'at'.ion` 'tho siivvvssii'v flownwai-l strot-v5 ot' thv plinigvr will giro ihz tiiivt` svpaiatv. :il-iiilptly i'vizniiiiating signals, thv -spvvit otthvvani innning' iip vavh tnnv high viioiigfh to vaiisv thv vain contacts to* tonv, a plvaving vtl'vvt, :intl ,f grvatn vai'ryin;r poivvr.

livl'vrahlv thv itviivvI that thv ravk ha i' normall)1 ovviipivs a prerlvtvi'ininvrt iaisvil position to whivh it in antoinativiill'i' ivtiiiiivil vavh tiriiv at'tvr it has hvvn ilvpivnwd oi' ivlvzisvil. Various nivans iiiai' hv vinploi'vil for liniitinLF thv iipwai'il ino\vinvnt. lHiivh t'oi instanvv as :i stop on onv. ol' thv gvai' invinhvi's. H shown, thv laizv, of thv ,Lfvai 37 is siivh that: itI ilovs' not i'otatv through onv voinplvtv i-viohition fhii'infg, thv liill iloiiiiwarit vnio\'vinviit ol' thv i'avh lliii, :init iii thv pviiphviy ot thv .Jvai 'l'i' is in Hvi'tvil a Aatop t! in thv l'oi'in ot' a pin iiil Iavt svrvw so positionvil that it: will vomv into vi'igapvnivnt with onv ol' thv tlvvtnh ote thil ravLI har whvn thv hittvi' is i'a'isvtl. .\s it pri-Hints thv tooth l`i'oin vi'itvriiig' hvt-wvvn tlhv vorrvsponiling' tvvth ot' thv gvar whvvl. it liinits thv iipwaiil iiiovvinviit ot' thv i'avh hai'.

lnstvail ol' in.\v:-!in; r thv iiphvi-v of thv gvai' lT aint pvi'inittingf it to vnp'aggv with thv rzivk har 3S" l may iisv :i Stop l2" :iny shown in 'Figa Thisl stop ix in thi'l torni otl :i .wi-vw thiviiilvrl into :in :ilivi'tiii'v in thv sziitv oti thv gvar lli :init viiY gagingr with thv viiil ot :i I vi'vw t2" tliivznlvil into thi` liravlivt. ily t`iiiiiiin;`r thv I#top :is shown in Fig. fi. a nonivwhat lai'gvr vontavt. siiifavv is Svviirvil :init thiis wvail or itistoi' tion` hiv to ivpvzitvit vontzivts. ix iii.itvii.-ill i'vtliivvil.

For givin;v thv iavli haiI its iipwai'il n'io\'vinvnt` l prv'l'vialillv pi'ovirlv :i voll spring II. whivh nni hv Qiiittvil on :i pin Vll :init nnij' vxtvnrl into :i liorv oi' passagv rnnnin'g' lvngthwinv otl thv i'iivh' ha i'. rl`hv spring :init pin aty thvir lowvi' vnils pi'vt'vizihlt' vnll'iig'v willi thv lowvr siilv oll thv vasing :init thv Spring at its iippvi' vint viigagi'if.`| with thv i'avk har at thv innvr viiil ol` thv passiigv Ho as to noi'inallw` tvnil to i'aiHv thv i'zi'vh hail to its iippvr liinitiingy poaition. rlhns. no svp- :ii'atv part is iivvilvit to hohl thv Spring:l :init pin, aint thv i'vininzil oli thv hi'nvhvl l'roii) thv vasingr pvi'initr4 thv rvnioval'ot' thv piti :init spring. As pi-vvionxlv stzitvih :hiringr thv. iipwiiiil iiii iiviiiviit. thv shalt'. its- L'fviii's t' :init SlT, thv pinion Slt) :inil`iatvlivt whvvl ll'ai'v rotatvfl in thi; rvvvi'sv ilii'vvton t'roin that in \\hivhjthv;\' n lv iotritvll tliiiingiilon'nwarit nioivinvnt :intl ,uviii' |32 niii'i' i'oliitv in n'iv" :intl may vithvi' vontiiiiiv i'otatliiig rviiiain latationaiil rhii'iii; thv`ii|ii invnt ol' thv iavl( hai'. ilvpvnilviit Hpvvrl at whivh thv riivh hai' is stop in thv pv` 4 thv. si'/.v aint inoinvntinn ol' thv. i'otoi" :intl thv po rtvrl preforal'ily hy is so const iiivtmly l, Il

leading lo the bearings. As lshown, the cup is supl'iortod by two tubes 47 and 48 lendingr lo ibo bearings ol the shafts 27 and 35, while a lhird tube 49 leads 'troni the oil cup to a point directly above the ratchet wheel 3l. For delivering oil to the oil cup, the top of the casing may be provided with a suitable pino' i3() having an ordinary type of spring pressed :losui'e such as is commonly employed lo prevent the admission ot" dust and dirt to oil openings. "By means of this construction, all of the bearings may be lubricated by admitting oil through a single opening, and the oil reservoir is supported solely by the conveyors of oil from said reservoir.

li'eifiug thus described my invention, What ,i claim ae new and desire to secure by Letters Fatent isi f i. An alarm or signaling device includ ing a dingihragm, a casing secured to the riiihei'y of the latter. a bracket within said, cf ing and secured to one wall thereof, a met: har projecting through the Wall of said easing and slidably guided by said breckeh a series of three shafts supported lijf said bracket and all disposed parallel to said diaphragm. a pair of rigidly connected.

gears on one of said shafts and having one oi' said gears engaging with said rack bar, a pinion and a ratchet Wheel rigidly connected together and mounted upon the seeond, of said shafts and having said pinion engaging with the other gear on said first mentioned shaft, a gear loosely mounted on ,said second mentioned shaft and carryinga epriiig presseiil paivl engaging with `said ratchet 'wheel and a rigidlyveonneeted pin aiujl.diaphragm vibrator carried by the d shaft and haring said pinion in en- 'enicnt -with said loosely mounted gear Ahorn or signaling device including a ."iiaphragin, a casing secured to the peripheral portion thereof, a rotor within said cas- .ing for vibrating said diaphragm, an operating member extending to the exterior ot said casing, power transmitting mechanism within` said casing` between said member and seul rotor, an oil cup Within said easing but nnattaehed thereto. a closure on said casing, and permitting admission of oil to said cup` and tubes for supporting 'said oil cup and :it the same time serfing to deliver oil to ihrhr-arings of said power transmitting nierl'ianisln.

il, A, horn or signaling device, including a diaphragm, a casing for supporting the lat ier, a rotor within said casing, an endWise Vmoval'ile rack har projecting ,through said raising into the interior thereof, a gear engaging with said rack bar, a stop carried thereby and disposed between two adjacent teeth thereoic for engaging with said rack bar to prevent further relative movement in the same direction, a spring tending to move said rack bar in said last mentioned direction, and multiplying gearing between said rotor and said gear wheel.

y 4. A horn or signaling device includinV a diaphragm, a casing for suliportingthe at ter, a bracket within said casing and having a passage-way therethrough, a gear wheel mounted on said bracket, a rack bar movable eudwise vthrough said passage and engaging with :aid gear wheel and with the side of said passage opposite to said gear wheel to Prevent lateral movement 'of the rack bar away from the gear Wheel, a' rotor carried by said bracket, and means for transmitting motion from said'gear Wheel to said rotor.

5. An alarm or signaling device ineluding a diaphragm, a casing secured to the periphery' ot the latter, a bracket Within said casing and secured to one Wall thereof, a pair of shafts supported by said bracket substantially parallel to said diaphragm, a diaphragm vibrating rotor on one of said shafts at one side of said bracket, a pinion on the other of said shafts at the same side of the bracket, a rack bar slidably mounted in sai bracket and meshing with said pinion, and multiplying gearing andI ratchet and pawl connections at the opposite side of said bracket for transmitting one-way r0- tary motion to said, rotor bea ring shaft from said pinion bearing shaft.

6. An alarm or signaling device, including a diirplirfigf'.il having a centrally disposed wear-piece, a -,.flindrical casing secured to the periphery..V of said diaphragm, a rack bar, a rack bar engaging pinion and a diaphragm vibrating toothed rotor Within said casing for direct engagement with said Wear piece, said bar, pinion and rotor being disposed in the central vertical longitudinal plane oi' said easing, a bracket Within said casing for supporting said rack bar, 'pinion and rotor, and a train of multiplying geen ing and iat-ehet and pawl connections at one side of said plane for transmittingone-way rotary motion to said rotor from said pin ion.

Signed at lSlevvark. in the county of Esserir and State; of New Jersey this first day of December A. D. 1914.

l DUNCAN A. MGCONNELL.-

JACOB GoLDsTEIN, ARTI-mn G. MINGHIN. 

